Multifunctional character of revived La-modified lithium titanate electrolyte: solar cell devices at a glance
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Multifunctional character of revived La-modified lithium titanate electrolyte: solar cell devices at a glance R. K. Parida1, Bhagyshree Mohanty1, S. Bhattacharjee2, S. K. Mohanty3, and B. N. Parida2,* 1
Department of Physics, ITER, Siksha ‘O’ Anusandhan (Deemed to be University), Jagmohannagar, Jagamara Khandagiri, Bhubaneswar, Odisha 751030, India 2 Department of Physics, Central Institute of Technology (Deemed to be University, MHRD, Govt. of India), Kokrajhar, BTAD, Assam 783370, India 3 Department of Physics, Mahapurusa Hadi Das Mahavidyalaya, Chhatia, Jajpur, Odisha 754023, India
Received: 21 July 2020
ABSTRACT
Accepted: 13 October 2020
The multi-functional material Li2LaFeTiO6 belonging to double perovskite family is expected to be non-cubic structure and interaction between La and Fe introduce octahedral B-site cation dis-order or anti-site effect. The material is prepared by conventional solid state reaction technique and its formation has been checked through X-ray diffraction (XRD). It is observed that material is orthorhombic crystal structure with Pbnm space group. Scanning electron microscope (SEM) picture of the surface uncovers distinctive shape and sizes of the grains are consistently appropriated all through the surface leaving not many voids. Energy dispersive spectroscopy (EDX) study indicates there is no impurities are seen in the present material. Fourier transform infrared (FTIR) spectroscopy revels the perovskite phase and different modes of vibration. The room temperature UV–Visible spectroscopic analysis reveals material is a potential candidate photovoltaic/solar cell device. The dielectric and electrical measurement is carried out using computer control LCR analyzer. The room temperature dielectric constant and loss tangent of the material is respectively [ 400 and\ 0.1 which reflects it can be used for multi-layer capacitor and micro-electronics.
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
1 Introduction Owing to the great potential applications in multifunctional magneto-electric devices, ‘double perovskites’ oxides bearing the general formula A2BB00 O6 have proved to be promising candidates and have
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https://doi.org/10.1007/s10854-020-04672-1
attracted the material scientists to a great extent. To study electronic structure and magnetic exchange of double perovskite (DP) in details, intensive research is dedicated to the electron doping studies of A, B and B00 site elements. Moreover the stability of the compounds is dependent on tolerance factor (s) and
J Mater Sci: Mater Electron
ionic radius of A, B and B00 -site elements. Although the discovery of DP was long back but frontline research on it is achieved in the year 1998 by Kobysachi et al. [1]. After this, research on DP gets accelerated by number of mineralogist. Among the few reports rare earth modified in A-site and B-site, respectively, in Sr2-xLax–FeMoO6 and Sr2FeRe1-xSbxO6 are most fascinating because of its electronic and magneto-e
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